JPS5768202A - Manufacture of rough shaped steel billet for asymmetric - Google Patents
Manufacture of rough shaped steel billet for asymmetricInfo
- Publication number
- JPS5768202A JPS5768202A JP14317180A JP14317180A JPS5768202A JP S5768202 A JPS5768202 A JP S5768202A JP 14317180 A JP14317180 A JP 14317180A JP 14317180 A JP14317180 A JP 14317180A JP S5768202 A JPS5768202 A JP S5768202A
- Authority
- JP
- Japan
- Prior art keywords
- calibers
- dissimilarly
- intermediate material
- breadth
- rolls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To improve the yield and efficiency of the rolling process, by preparing an intermediate material having dissimilarly shaped flanges at lateral both ends of a slab by using dissimilarly sized upper and lower box calibers, by turning this intermediate material, and by subjecting it to a rolling process through a rolling roll having dissimilarly shaped left and right shape forming calibers. CONSTITUTION:The said rolling rolls comprise upper and lower rolls 6, 7 whose outer surfaces are provided with dissimilarly sized upper and lower calibers consisting of centering calibers 8, 9, breadth widening calibers 10, 11 flange's outer surface and tip reforming calibers 12, 13 and forming calibers 14, 15. When a flat slab is rolled in the direction of breadth by these rolls, an intermediate material having dissimilarly shaped flanges at lateral both ends is formed by the centering calibers 8, 9, breadth widening calibers 10, 11, and flange's outer surface and tip reforming calibers 12, 13. This intermediate material is turned, and is rolled by forming calibers 14, 15 into a rough shaped steel billet for use of manufacturing a prescribed asymmetric steel shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14317180A JPS5768202A (en) | 1980-10-14 | 1980-10-14 | Manufacture of rough shaped steel billet for asymmetric |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14317180A JPS5768202A (en) | 1980-10-14 | 1980-10-14 | Manufacture of rough shaped steel billet for asymmetric |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5768202A true JPS5768202A (en) | 1982-04-26 |
Family
ID=15332560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14317180A Pending JPS5768202A (en) | 1980-10-14 | 1980-10-14 | Manufacture of rough shaped steel billet for asymmetric |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5768202A (en) |
-
1980
- 1980-10-14 JP JP14317180A patent/JPS5768202A/en active Pending
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